Guest:  Dr. Rachael Seidler;  Topics:  Brain white matter and fluid changes associated with human spaceflight and why it matters.

Guest:  John Bucknell;  Topics:  Turbo rocket concept design for a nuclear thermal rocket with a chemical rocket variant, nuclear propulsion, education, policy and more.  Please direct all comments and questions regarding specific Space Show programs & guest(s) to the Space Show blog which is part of archived program on our website, www.thespaceshow.com.  Comments and questions should be relevant to the specific Space Show program.

Guest:  Davide Sivolella; Topics: Davide's new book, "The Space Shuttle Program plus in the second segment his vision for building a space industry for us on Earth and more.  Please direct all comments and questions regarding specific Space Show programs & guest(s) to the Space Show blog which is part of archived program on our website, www.thespaceshow.com.   Comments and questions should be relevant to the specific Space Show program.

Guest:  Dr. Francis (Frank) Cucinotta;  Topics: Radiation and cancer risk for humans to Mars, the Moon, plus possible mitigation strategies.  Please direct all comments and questions regarding specific Space Show programs & guest(s) to the Space Show blog which is part of archived program on our website, www.thespaceshow.com.  Comments and questions should be relevant to the specific Space Show program.

Guest:  Jim Cantrell;  Topics: Vector Space Systems, microlaunchers, space policy, risk, Mars, and much more.  Please direct all comments and questions regarding specific Space Show programs & guest(s) to the Space Show blog which is part of archived program on our website, www.thespaceshow.com.   Comments and questions should be relevant to the specific Space Show program. Written Transcripts of Space Show programs are a violation of our copyright and are not permitted without prior written consent, even if for your own use.